The increase in the traction-drive power reults in the necessity of improving the existing system of the traction power supply. A possibility to improve the trolleybus power-supply system by decreasing energy losses during transmissions from the power supply source to the power feed line is considered. The passage from the existing two-wire power-supply system to the DC three-wire system is proposed. It requires the modernization of the power-supply circuits by passing from the traction-transformer winding connection by star-two inverse stars with equalizing reactor to that by star-star, delta with the series connection between three-phase bridge rectifiers. A method for calculating losses for the proposed circuit solution is described. Taking account of the real conditions of motion, 9 different situations of the mutual location of trolleybuses are considered. The studies of the mathematical model describing the proposed power-supply system show that the lengths of the regions between substations may be doubled and technological energy losses may be approximately halved.
Improving performance of trolleybus power-supply system
Leistungssteigerung im Trolleybus-Stromversorgungsnetz
Russian Electrical Engineering ; 78 , 9 ; 500-504
2007
5 Seiten, 5 Bilder, 3 Quellen
Article (Journal)
English
Engineering Index Backfile | 1939
|Engineering Index Backfile | 1940
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